High-peak-power passively Q-switched Nd:YAG laser at 946∈nm

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We demonstrate a high-peak-power quasi-continuous-wave diode-pumped passive Q-switched Nd:YAG laser at 946 nm. We make a thorough comparison of the output performance between the saturable absorbers of InGaAs quantum wells (QWs) and a Cr4+:YAG crystal. Experimental results reveal that the saturable absorber of InGaAs QWs is superior to the Cr4+:YAG crystal because of the low nonsaturable losses and leads to a pulse energy of 330 μJ with a peak power greater than 11 kW.

Original languageEnglish
Pages (from-to)429-432
Number of pages4
JournalApplied Physics B: Lasers and Optics
Issue number3-4
StatePublished - 1 Jun 2008


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